Possible Causes
WARNING: This page is about a different car, the 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| AAT SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| AAT SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| AAT SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE |
| AMBIENT AIR TEMPERATURE (AAT) SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
| BODY CONTROL MODULE (BCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .